CN106402625A - Bearing pad oil supply device with servo valve - Google Patents
Bearing pad oil supply device with servo valve Download PDFInfo
- Publication number
- CN106402625A CN106402625A CN201610463888.1A CN201610463888A CN106402625A CN 106402625 A CN106402625 A CN 106402625A CN 201610463888 A CN201610463888 A CN 201610463888A CN 106402625 A CN106402625 A CN 106402625A
- Authority
- CN
- China
- Prior art keywords
- oil
- servo valve
- house steward
- valve
- fuel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
- F16N7/40—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems in a closed circulation system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
Abstract
The present invention discloses a bearing pad oil supply device with a servo valve. The device comprises an AC motor oil pump unit, a DC motor oil pump unit, a one-way valve, an oil filter, a pressure sensor, a flow sensor, an oil outlet main pipe, a servo valve, a programmable controller, a stop valve, an oil inlet main pipe, and a cabinet. The bearing pad oil supply device with a servo valve uses an AC-DC dual-power oil pump system; the inlet main pipe is allowed to communicate with the oil outlet main pipe by means of the servo valve, and the high-accuracy flow sensor and pressure sensor are used to collect operating data, while the programmable controller is used to dynamically regulate the opening of the servo valve, thus meeting the bearing pad oil supply requirements under different operating conditions of the unit.
Description
Technical field
The present invention relates to a kind of bearing shell fueller with servo valve
Background technology
The rotor quality of large hydropower station unit is larger, needs using lubrication between bearing shell and gripper shoe
Oil is lubricated, when unit is operated with rated speed, can be by self-lubricating mode by oil groove
Lubricating oil be brought in bush gap, but in unit starting and stopping process, because rotating speed is remote
Far below rated speed it is impossible to rely on rotation to be brought in bush gap the lubricating oil in oil groove,
Easily produce dry friction to cause bearing shell temperature rise too high and then damage bearing shell, now need to carry out outside
Force fuel feeding to set up and stablize oil film.
From the point of view of the investigation to operating unit, for the different operating conditions of unit, bearing shell
Different to charge oil pressure and traffic demand when oil film is set up, such as unit starting when required oil
Film is set up oil film when pressure is just significantly larger than compressor emergency shutdown and is set up pressure, so needs bearing shell fuel feeding
Device possess controllability.Conventional bearing shell fueller is typically opened using alternating current generator total head
Flowing mode, and can only quantitative pressure oil output require it is impossible to meet regulating working conditions.And with fortune
The increase of row time, fueller fuel pump outlet flow-limiting valve setting valve can produce drift, needs not
Periodically carry out process of adjusting, bring burden to power plant's maintenance operation.
According to case above, we have developed a kind of bearing shell fueller with servo valve, pass through
Programmable Logic Controller carries out servo valve is controlled, can effectively solving problem above, root simultaneously
Need according to safe operation of power plant, this device employs dual power supply motor pump unit form.
Content of the invention
The invention provides a kind of bearing shell fueller with servo valve, disclosure satisfy that power station is sent out
Bearing shell lubrication oil supply use requirement under the different operating modes of group of motors.
The technical solution used in the present invention is：A kind of bearing shell fueller with servo valve, including
Alternating current generator oil pump unit (1), direct current generator oil pump unit (2), check valve (3), oil strain
Device (4), pressure transducer (5), flow transducer (6), fuel-displaced house steward (7), servo valve
(8), Programmable Logic Controller (9), stop valve (10), oil-feed house steward (11), cabinet (12),
The outlet of each Oil pump electrical machinery unit is respectively mounted check valve (3) and oil filter (4) and is aggregated into
On fuel-displaced house steward, fuel-displaced house steward (7) is sequentially installed with pressure transducer (5) and flow passes
Sensor (6), the pipeline between fuel-displaced house steward (7) and oil-feed house steward (11) is provided with servo
Valve (8), fuel-displaced house steward (7) and oil-feed house steward (11) pass through the flange of stop valve (10) with
Bearing shell pipeline is connected, and above each element is mounted on cabinet (12), is installed on cabinet (12)
On Programmable Logic Controller (9) be used for aperture control is carried out to servo valve (8).
The method have the characteristics that：
1. pass through servo valve UNICOM oil-feed house steward and fuel-displaced house steward, the pump start stage can be completed
Steadily build pressure, prevent with pressure start motor and power supply are impacted.
2. Programmable Logic Controller receives the flow transducer of fuel-displaced house steward and the reality of pressure transducer
When feedback data, after carrying out internal calculation, aperture control is carried out to servo valve, thus complete
Become the dynamic regulation of bearing shell charge oil pressure and flow, the oil film meeting under different operating modes is built
Pressure request.
3. adopt the dual power supply oil pump systems of alternating current generator and direct current generator, equipment fortune is effectively ensured
The reliability of row, it is ensured that bearing shell fuel feeding in the case of any one power supply dead electricity
Operation requires.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the schematic diagram of the present invention.
Specific embodiment
With reference to the accompanying drawings shown in 1, a kind of all elements of bearing shell fueller with servo valve are installed
In the cabinet 13 of framework closed structure, contribute to installation and maintenance, bearing shell fueller adopts
Alternating current generator oil pump unit 1 and direct current oil pump unit 2 as standby usage unit, during normal use
Preferential startup alternating current generator, starts direct current generator when overhauling or exchange electric fault, because of unit
The startup starting stage needs elevated pressures just lubricating oil can be injected bush gap, so this rank
The hydraulic fluid port of section servo valve 8 progressively will be turned down by fully open position, prevent oil pump startup with pressure to motor
And power supply impacts, build pressure operation phase Programmable Logic Controller 9 according to design load and pressure
Force curve calculates corresponding output oil amount, by pressure transducer 5 and the flow of fuel-displaced house steward
The feedback data of sensor 6 carries out aperture regulation to servo valve opening, by servo valve to fuel-displaced
The pressure oil of house steward is shunted it is ensured that the oil mass being entered between bearing shell and runner plate meets bearing shell oil film
Film of building require the stability it is ensured that oil film, this bearing shell fueller was arranged in fuel pump outlet
Filter 4, carries out filtration treatment to the impurity in oil body and emulsion, effectively extends oil pump
Service life, is provided with check valve 3 on pipeline, prevents oil-feed house steward 11 and fuel-displaced house steward 7
There is string oil in both sides, arrange the stop valve 10 with common flange interface, contribute to setting outside cabinet
Standby Quick overhaul.
Claims (1)
1. a kind of bearing shell fueller with servo valve, by alternating current generator oil pump unit (1),
Direct current generator oil pump unit (2), check valve (3), oil filter (4), pressure transducer (5),
Flow transducer (6), fuel-displaced house steward (7), servo valve (8), Programmable Logic Controller (9),
Stop valve (10), oil-feed house steward (11), cabinet (12) composition, each motor pump unit
Outlet is respectively mounted check valve (3) and oil filter (4) and is aggregated on fuel-displaced house steward (7),
Pressure transducer (5) and flow transducer (6) are sequentially installed with fuel-displaced house steward (7), go out
Servo valve (8) is provided with the pipeline between oily house steward (7) and oil-feed house steward (11), fuel-displaced
House steward (7) is connected with bearing shell pipeline by the flange of stop valve (10) with oil-feed house steward (11)
Connect, above each element is mounted on cabinet (12), is installed on compiling on cabinet (12)
Range controller (9) is used for carrying out aperture control to servo valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463888.1A CN106402625A (en) | 2016-06-23 | 2016-06-23 | Bearing pad oil supply device with servo valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463888.1A CN106402625A (en) | 2016-06-23 | 2016-06-23 | Bearing pad oil supply device with servo valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106402625A true CN106402625A (en) | 2017-02-15 |
Family
ID=58006124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610463888.1A Pending CN106402625A (en) | 2016-06-23 | 2016-06-23 | Bearing pad oil supply device with servo valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402625A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101715A (en) * | 1987-03-06 | 1988-09-14 | 莫斯科“生物物理仪器”科学制造公司 | The lubricating fitting of hydrodynamic bearing |
| CN201739746U (en) * | 2010-06-03 | 2011-02-09 | 沈阳瑞祥风能设备有限公司 | Lubricating system for bearing of rotor of wind turbine generator |
| CN103062609A (en) * | 2012-12-25 | 2013-04-24 | 清华大学 | Nuclear power sliding bearing oil feeding system based on comprehensive measurement of flow, pressure and temperature |
| CN103470938A (en) * | 2013-09-26 | 2013-12-25 | 常熟市淼泉压缩机配件有限公司 | Lubricating device in piston compressor transmission mechanism |
| CN103672346A (en) * | 2013-12-21 | 2014-03-26 | 湖南崇德工业科技有限公司 | Sliding bearing intelligent oil supply system and method |
| CN104089170A (en) * | 2014-07-03 | 2014-10-08 | 安庆市阳光机械制造有限责任公司 | Automatic oil supply and lubricating device for machine tool telescopic protective cover |
-
2016
- 2016-06-23 CN CN201610463888.1A patent/CN106402625A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101715A (en) * | 1987-03-06 | 1988-09-14 | 莫斯科“生物物理仪器”科学制造公司 | The lubricating fitting of hydrodynamic bearing |
| CN201739746U (en) * | 2010-06-03 | 2011-02-09 | 沈阳瑞祥风能设备有限公司 | Lubricating system for bearing of rotor of wind turbine generator |
| CN103062609A (en) * | 2012-12-25 | 2013-04-24 | 清华大学 | Nuclear power sliding bearing oil feeding system based on comprehensive measurement of flow, pressure and temperature |
| CN103470938A (en) * | 2013-09-26 | 2013-12-25 | 常熟市淼泉压缩机配件有限公司 | Lubricating device in piston compressor transmission mechanism |
| CN103672346A (en) * | 2013-12-21 | 2014-03-26 | 湖南崇德工业科技有限公司 | Sliding bearing intelligent oil supply system and method |
| CN104089170A (en) * | 2014-07-03 | 2014-10-08 | 安庆市阳光机械制造有限责任公司 | Automatic oil supply and lubricating device for machine tool telescopic protective cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170215 |